Oliver Williams, a 16-year-old from St. Louis, was shot and killed inside Yeatman Market in the O’Fallon neighborhood on Saturday afternoon, June 6, 2026. Police were called to the 4300 block of East Lee Avenue shortly after 4 p.m.; officers found Oliver inside the store with a gunshot wound and he was pronounced dead at the scene. Early reports misidentified him as an adult before police corrected his age.

Homicide detectives have taken over the investigation but police have not released a motive or a detailed timeline of events. The market’s co-owner said surveillance footage was turned over to detectives and described Oliver as a regular, smiling customer; witnesses said the business locked its doors and closed immediately after the shooting. No arrests have been announced and investigators are asking anyone with information to contact the St. Louis Metropolitan Police Department Homicide Division or submit an anonymous tip to CrimeStoppers.

Did anyone in the O’Fallon neighborhood know Oliver or see activity near Yeatman Market that afternoon?